Oiler for loose pulleys



J- J. FORTIEH AND J. K- SHERWOOD- OILER FOR LOOSE PULLEYS- APPLICATIONFILED MAY 2, 1919.

1,345,843. Patented July 6, 1920;

I amvawbow /06h /0/22es l ol'f/er Mia raw mlmr UNITED STAT ES PATENTOFFICE.

JOHN JAMES FORTIER AND JOHN K. SHERWOOD; OF GRAND RAPIDS, MICHIGAN; SAIDSHERWOOD ASSIGNOR TO SAID FOBTIEB.

OILER FOB LOOSE PULLEYS.

Application filed May 2, 1919.

To all whom it may concern:

Be it known that we, JOHN JAMES Fon'rrnn and JOHN K. Sinniwooo, citizensof the United States of America, residing at Grand Rapids, in the countyof Kent and State of lrlichigan, have invented certain new and usefulImprovements in ()ilers for Loose Pulleys; and we do hereby declare thefollowing to he a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention. relates to a construction adapted to be applied topulleys, wheels or the like which run more or less of the time looselyon shafts. It is an object and purpose of the present invention toprovide a container for a quantity of lubricant which may be attached toand move with a loose pulley, wheel or the like, and to provide noveland effective means in and associated with the lubricant container foreffectively supplying the lubricant from the container to the shaft andbetween the shaft and the pulley or wheel. The invention consists ofnovel combinations and arrangements of parts as will appear from thefollowing description, taken in connection with the accompanyingdrawing, in which,

Figure 'l is a vertical section through a pulley equipped with the oilerwhich is shown in elevation, and

Fi 2 is an enlarged vertical section through the oiler.

Like reference characters refer to like parts in the different views ofthe drawing.

in the construction of the oiler a substantially spherical hollowcasting 1 is used, the same being adapted to contain a quantity oflubricant in liquid form, from which, at its lower side a projection 2,substantially square in cross section depends, terminating in a taperedthreaded stem 3. A tube 4 passes upwardly through the stem 3, projection2 and through the container reaching nearly to the top of the same asshown. The tube is held against movement by a set screw 5 which passesthrough a side of the projection 2 and bears against any suitableprotective packing material 6 disposed between the end of the set screwand the tube to protect the same from indentations which might occur ifthe screw had direct contact with the tube.

A rod 7 is inserted in the lower end of tube Specification of LettersPatent.

Patented July 6, 1920.

Serial No. 294,304.

4 and lies loosely therein. its lower end normally projects a distancebelow the lower end of the stem 3 and at its upper end within the tubeat, a coiled spring 8 of light tension is located, its upper end bearingagainst the lower side of a nut 9 threaded into the upper side of thecontainer. This spring is under compression and forces rod 7 downwardlywith a light pressure. An opening is made in a side of the container andis adapted to be covered by a cap 10 from which a threaded plug 11projects, the opening being threaded to receive the plug. 'T he cap 10has a wing extension for use in turning the same to wholly or partlyremove the plug. An opening 12 is formed lengthwise of the plug from itsinner end for a distance and then turned laterally making an openin 13in the side so that when the plug is partly unscrewed the opening isaccessible for the insertion of liquid lubricant therethrough.

This oiler is adapted to be attached to a pulley 14: or like wheelstructure having a hub 15 through which a shaft or spindle l6 looselypasses, the pulley turning thereon. A hole is tapped in the hub and thestem 3 threaded therein, it being apparent that the lower end of rod 7rides on the shaft. As the pulley is turned, the liquid lubricant withinthe container 1 is thrown outwardly by centrifugal action so that aslong as there is any lubricant in the container the open end of the tubel within the container has it carried thereto. on the shaft vibratesback and forth more or less, particularly if the shaft becomes dry toany extent and this movement of the rod has the effect of carrying asmall amount of lubricant through the tube 4 to the shaft and thuslubricates the bearing surfaces between the shaft and pulley.

This oiler construction is of simple con, struction and in practiceapplied to loose pulleys as described acts to feed sufficient oil sothat a well lubricated bearing is always present between the pulley andthe shaft on which it turns, while an excess of oil cannot run from thecontainer to the shaft and flood the same with consequent loss oflubricant. The oiler is automatic in action, economical in use oflubricant and entirely practical and efficient in all respects.

We claim:

1. A device of the character described The end of the rod 7 riding a acoiled spring within the tube at its upper end and disposed between theupper end of the rod andupper side of the container, and means forintroducing a quantity of liquid lubricant into .the container,substantially as described,

2. A device of, the character described com arisin a hollow containerhavin a threaded stem projecting from the lower side thereof, a tubeopen at both ends passing through the stem and into the container,itsupper end terminating a short distance from the upper side of thecontainer, means passing through the stem to hold the tube in place, arod loosely mounted in the tube, its lower end normally extending adistance below the lower end of the stem and its upper end terminatingshort of the upper end of the tube, a coiled spring housed in the tubeat the upper endof the rod and disposed between the rod and the upperside of the container, and a plug threaded into a side of the containerwhereby liquid lubricant may be passed into the container at said side,substantially as described.

3. A device of the character described comprising a hollow containerprovided with means at one side to attach it to the hub of a pulley orlike rotating structure, said pulley being adapted to turn on arelatively fixed shaft or spindle, a tube open at both ends reachingfrom adjacent the opposite side of the container and within the samethrough said attaching means, a rod in the tube having one end adaptedto bear against the shaft or spindle, means housed within the tube andbearing against the rod for forcing the rod. with light pressure againstsaid shaft or spindle, and means at a side thereof, whereby thecontainer rotates with the hub around the shaft, means to introduce aquantity of liquid lubricant into the container, a tube passing throughthe stem into the container and terminating a short distance from theouter side of the container, a rod loosely mounted in the tube, itsinner end bearing against the shaft and its upper end terminating adistance short of the upper end of the tube, a spring housed in the tubebetween the outer end of the rod 7 and the outer side of the container,and a nut threaded through the outer side of the container against whichthe outer end of the spring bears,'said spring serving to hold the rodwith light pressure against the shaft, substantially as described.

A device of the character described, comprising a container for liquidlubricant, means for attaching the same to a hub of a wheel or pulley sothat the same moves with the wheel or pulley and the lubricant is thrownto the outer parts of the container by centrifugal action, atube'leading from the outer portion of the container through saidattaching means, and a spring and a rod loosely mounted in the tube,said rod passing beyond said attaching means and bearing with pressureexerted by the spring against the shaft on which the pulley is adaptedto be loosely mounted, substantially as described.

6. A device of the character described, comprising a container forliquid lubricant, an outlet tube therefor, a rod loosely mounted in thetube, and spring means tending to move the rod outwardly in the tube,substantially as described.

In testimony whereof we affix our signatures.

JOHN JAMES FORTIER. JOHN K. SHERl/VOOD.

